While researching World War II for a script, I came across a definition of race as classified by looks -- how close were the eyes to the nose to the chin, the color of hair -- that defined opportunity, the prejudice of predefinition that superseded both the potential of the individual and the needs of entire nations.

By predefinition, in contradistinction to predestination to glory, theologians understand the absolute, positive, and efficacious decree of God from all eternity, that certain persons shall at some time in the future perform certain good works (cf. Franzelin, "De Deo Uno" Rome, 1883, pp. 444 sqq.).

Levitt doesn't address the problems associated with relying on the children's own self-identification as the sole means of identifying biracial children, yet throughout his paper, he makes the assumption that his "biracial" experimental group consists solely of children with one Black and one White parent, who uniformly fit into his predefinition of "mixed race".